blk-throttle: pass the I/O counts of a dead group on

The recursive io_service_bytes and io_serviced files sum up the online
groups plus what dead descendants left in aux_cnt. That worked while the
counters lived in the blkg. Since commit 7ca464383aec they're in the
throtl_grp and nobody passes them up, so the files go backwards when a
child is removed. Add them to the parent in throtl_pd_offline().

Fixes: 7ca464383aec ("blk-throtl: stop using blkg->stat_bytes and ->stat_ios")
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://patch.msgid.link/20261028164415.1262013-26-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>

0 files changed, 0 insertions, 0 deletions